Figure 5: Galaxy morphology as a function of central surface brightness ( ) and scalelength ( ). This panel displays galaxies with scalelengths less than 1 kpc. Irregular morphology dominates LSB galaxies, although smooth morphology is the signature of a gas-poor LSB and, therefore, would not be included in our sample due to a lack of an HI redshift. A larger version of this figure is available at our website.